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以Fe3O4为核心,以IRMOF-3为壳层,采用层层包裹的方法制备了核-壳结构的磁性Fe3O4@IRMOF-3材料。用X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、透射电镜(TEM)、及扫描电镜(SEM)等手段对材料进行表征,并考察了材料在Knoevenagel缩合反应中的催化反应性能。实验结果表明,Fe3O4@IRMOF-3材料呈现出Fe3O4和IRMOF-3的双重功能,既可以磁性分离,又具有IRMOF-3的晶体结构、孔结构和催化性能,在Knoevenagel缩合反应中表现出较好的催化活性、选择性和稳定性。
The core-shell magnetic Fe3O4 @ IRMOF-3 material was prepared by layer-coating with Fe3O4 as the core and IRMOF-3 as the shell. The materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The catalytic activity of the materials in Knoevenagel condensation reaction Reactivity. The experimental results show that the Fe3O4 @ IRMOF-3 material has the dual function of Fe3O4 and IRMOF-3, which can not only magnetically separate, but also have the crystal structure, pore structure and catalytic activity of IRMOF-3, which shows better performance in Knoevenagel condensation reaction Catalytic activity, selectivity and stability.